homemade hot dogs

hey i was watching the episode with "Shirliza" and they make homemade hotdogs and it looked to be with out casings, which really caught my attention, but i got to the part where he put the ground meats in a piping bag and then the cable went out for the rest of the day....
...can anyone either give me a video link to see it or tell me how he did it cuz i cant find it anywhere....

thanks!